As the upon table : 
Vertical axis : Pressure Dew Point (℃)
Horizontal axis : Air Conditioning Dew Point (℃) under pressure

For example : 
1. Under 0.69MPa : Pressure Dew Point is 10℃ → Air Conditioning Dew Point is about 17.3℃。
2. Under 0.69MPa : Pressure Dew Point is -20℃ → Air Conditioning Dew Point is about -41.5℃。

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